Bently Nevada 31000-28-05-20-110-00-02 | Shaft Vibration Monitoring & Installation Guide
Product Introduction 31000-28-05-20-110-00-02
The Bently Nevada 31000-28-05-20-110-00-02 is a complete proximity probe system. It is a core component in modern condition monitoring systems. Specifically, this model operates as a non-contact device. It measures shaft relative vibration and axial position within rotating machinery. The system includes a 3300 XL 5 mm probe, a 5-meter extension cable, and a proximity probe driver. This Bently Nevada system reliably delivers a linear voltage output. This output is proportional to the gap between the probe tip and the target surface.
Core Value 31000-28-05-20-110-00-02
This system provides high reliability for plant protection systems. Firstly, it features an 8 mm mounting thread for versatile installation. Moreover, the 5-meter cable length provides significant flexibility for routing. This setup simplifies connection back to the rack. The Bently Nevada 31000-28-05-20-110-00-02 also maintains stable performance. It resists temperature variations and EMI interference. Furthermore, it offers an auto-compensating design. This design reduces signal drift over time. Consequently, it ensures long-term accuracy for critical assets.
Technical Insights
Specifically, the Bently Nevada 31000-28-05-20-110-00-02 operates on the eddy current principle. The oscillator provides a 2 MHz excitation frequency. This frequency is standard for Bently Nevada proximity systems. Furthermore, this system delivers a high sensitivity of 200 mV/mil (7.87 V/mm). The driver outputs a -24 Vdc nominal voltage. This output interfaces directly with compatible Bently Nevada monitoring modules. Additionally, the connector uses a standard 3-pin configuration. This design ensures compatibility with the 3300 and 3500 series racks.
Installation & Maintenance
Proper installation of the Bently Nevada 31000-28-05-20-110-00-02 requires attention to detail. Firstly, confirm the target gap voltage. You must set this voltage to -10.0 Vdc. This setting aligns with the midpoint of the linear range. Moreover, use the specified torque when tightening the probe. The torque must not exceed 54 Nm for the 8mm thread. Meanwhile, maintain clearance around the probe tip. Keep a minimum of 100 mm of straight cable. This measurement is from the probe tip. Furthermore, you must route the cable separately. Keep it away from high-voltage power cables. Also, avoid bending the cable tightly. The minimum bend radius is 25.4 mm. Regular maintenance involves periodic visual inspections. Check the probe tip for debris. Also, verify the connector seal integrity. Always inspect for cable damage during routine outages.
Buyer’s Guide FAQ
1. What are the specifications for the Bently Nevada 31000-28-05-20-110-00-02?
The Bently Nevada 31000-28-05-20-110-00-02 includes a 3300 XL 5 mm probe. It comes with a 5-meter cable and a Proximitor driver. The thread size is 8 mm x 0.75. The driver interfaces with standard 24 Vdc power supplies.
2. How long is the cable on the 31000-28-05-20-110-00-02?
The system includes a 5-meter (16.4 feet) cable. This measurement refers to the length from the probe tip to the connector. This Bently Nevada model is configurable with different cable lengths.
3. What is the purpose of the 31000-28-05-20-110-00-02?
This Bently Nevada system measures shaft relative vibration. It also monitors thrust position and eccentricity. You use it to protect turbines, compressors, and pumps. This device detects early bearing wear and instability.
4. How do I set up the 31000-28-05-20-110-00-02 gap?
You must adjust the probe tip to achieve -10 Vdc. This setting places the probe in the center of the linear operating range. Specifically, this means a 50 mils gap to the shaft.
5. Is the 31000-28-05-20-110-00-02 compatible with the 3500 rack?
Yes, this system is fully compatible. It interfaces directly with the Bently Nevada 3500/42 Proximitor module. The 31000-28-05-20-110-00-02 is the standard replacement part.
